[bolger] Re: epoxy won't cure
BO>this is another thing i really like about the slow stuff. you can mix
BO>and mix and mix some more without fear of it suddenly setting up on
BO>you and becoming useless. I swear I'm wasting close to NONE . Very
BO>satisfying.
My problem was, having built the Nymph, I bought in bulk for the Light
Schooner. building in winter, it was all fast hardener. When i
finished, I still had nearly half left (I =really= bought in bulk, and
it =was= cheaper than any alternative, even with 40% left over). I'm
still using this eight years on, and I still wince and get panic attacks
because of the speed the stuff goes off in any even remotely warm
weather.
I s'pose I should have bought some slow hardener by now, but it's always
smallish jobs and there's always been something else to buy first...
Tim & FT2
BO>David Ryan
Only case I ever had of epoxy not curing was glassing the bow 10ft of
the Light Schooner, where epoxy proportions were right but NOT MIXED
THOROUGHLY. THis led to a terrible mess of two much epoxy here and too
much hardener there and cured epoxy and glass in the middle. In the
end, it had to come off and be done again. I used scrapers, vinegar,
chisels, lots of rapidly-cloged sand paper - what a mess...
Mixing is often overlooked. Especially if cold,the stuff really has to
be mixed, not just stirred like sugar in coffee, but mixed with paddle,
scraping the container sides and bottom too.
Tim & FT2
tjfatchen@... wrote:
BO>more about expoxy that won't cure
BO>David Ryan
Only case I ever had of epoxy not curing was glassing the bow 10ft of
the Light Schooner, where epoxy proportions were right but NOT MIXED
THOROUGHLY. THis led to a terrible mess of two much epoxy here and
too
much hardener there and cured epoxy and glass in the middle.
In the
end, it had to come off and be done again. I used scrapers, vinegar,
chisels, lots of rapidly-cloged sand paper - what a mess...
Mixing is often overlooked. Especially if cold,the stuff really
has to
be mixed, not just stirred like sugar in coffee, but mixed with paddle,
scraping the container sides and bottom too.
Tim & FT2
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advisable to mix the epoxy resin and hardner first, mix well and then in
sequence mix in the other compounds in this order (according to Hendricks):
1) Fibre fillers 2) bulking agents and finally 3) thixotrophics. More than
this I cannot say, since I seem to have epoxied my epoxy manual closed.
Regards, Warren
>Mixing is often overlooked. Especially if cold,the stuff really has tothis is another thing i really like about the slow stuff. you can mix
>be mixed, not just stirred like sugar in coffee, but mixed with paddle,
>scraping the container sides and bottom too.
>
and mix and mix some more without fear of it suddenly setting up on
you and becoming useless. I swear I'm wasting close to NONE because
I'm not making too much. With the slow stuff, I can mix a little, use
a little, until the job is done. Virtually no waste at all. Very
satisfying.
YIBB,
David Ryan
Minister of Information and Culture
Crumbling Empire Productions
(212) 247-0296